1400251132 has 96 divisors (see below), whose sum is σ = 3094318080. Its totient is φ = 542089152.

The previous prime is 1400251123. The next prime is 1400251141. The reversal of 1400251132 is 2311520041.

It is an interprime number because it is at equal distance from previous prime (1400251123) and next prime (1400251141).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4417038 + ... + 4417354.

It is an arithmetic number, because the mean of its divisors is an integer number (32232480).

Almost surely, 2^1400251132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400251132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547159040).

1400251132 is an abundant number, since it is smaller than the sum of its proper divisors (1694066948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400251132 is a wasteful number, since it uses less digits than its factorization.

1400251132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1400251132 is about 37419.9296097681. The cubic root of 1400251132 is about 1118.7558282230.

Adding to 1400251132 its reverse (2311520041), we get a palindrome (3711771173).

The spelling of 1400251132 in words is "one billion, four hundred million, two hundred fifty-one thousand, one hundred thirty-two".